I am pleased to inform you that the above has now been released, and can be accessed via the following link on our website: Technical interface specifications for Companies House software - GOV.UK.
This caters for the new package accounts submissions that are being introduced with the release of the zip portal (File package accounts with Companies House service), the enablement of the 2025 Taxonomy suite in April and the mandatory elements relating to the forms’ components of the CIC.
SDN